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GYTR R9 CAMSHAFT ASSY 1 IN WSS
Yamaha has revealed the GYTR Yamaha YZF-R9 kit parts in 2 different kits:
1) Phase 1 Trackday kit > use these GYTR parts to upgrade the performance of your YZF-R9 trackday bike.
2) Phase 2 FIM NG World Supersport kit > used by Stefano Manzi in 2025 on his Championship winning Yamaha YZF-R9. This kit also includes the compulsory FIM homologated parts.
This GYTR performance part BKN12170GY00 is part of the YZF-R9 Phase 2 Engine Kit.
See picture for full kit.
GYTR R9 Camshaft Assembly 1 IN WSS – Part Number: BKN12170GY00
Developed from Yamaha’s World Supersport (WSS) racing program, the GYTR R9 Camshaft Assembly 1 IN WSS provides precise valve timing and optimized engine performance for the YZF-R9. Designed for high-performance track use, this race-grade camshaft assembly enhances engine response, power delivery, and durability under extreme racing conditions.
Part Number: BKN12170GY00
Compatibility:
- Yamaha YZF-R9 (2025 and later)
- Type: World Supersport Specification Camshaft Assembly (Intake)
Function: Controls the opening and closing of intake valves with precise timing, ensuring optimal engine breathing and maximum performance at high RPMs.
Features:
- WSS-Derived Design: Developed using insights from Yamaha’s World Supersport racing technology for professional track reliability.
- Enhanced Engine Performance: Optimizes valve timing for improved power delivery, torque, and throttle response.
- Durable Construction: Built from high-strength materials to withstand extreme heat and high RPM stresses.
- Precision Engineering: Ensures exact fitment and alignment with the YZF-R9 cylinder head and valve train.
- Track-Ready Performance: Delivers consistent and reliable operation during competitive racing conditions.
- Closed-Course Use Only: Intended for racing and track applications; not for street use.
Installation: Professional installation required. Optimized for use with the full GYTR WSS engine and valve train components for maximum performance and reliability.



